摘要
高压开关触头、母线一般处于高电位,检测其温度一直是电力系统检测中的难题。提出了一种新方法,利用AVR单片机控制光源,通过位移-光强度型光纤温度传感器的调制,带有温度信息的光信号耦合到LOG114芯片进行光电转换及放大,输出信号再由AVR单片机进行A/D转换,经数据分析得到高精度的温度值。系统具有精度高、体积小和抗电磁干扰强等特点。
Due to the contacts and bus of the hige voltage switch lies in high potental, it is difficult to detect their temperature directly. A new design is discussed using AVR control led light source. Through light intensity fiber-optic temperature sensor modulation , the optical signal with a temperature information is coupled into LOG114 for photoelectric conversion and enlarger. AVR processes A/D conversion for the output signal and analyses data to gain high-precision temperature. The system has characteristics of high precision, occupied small space, resistance to electromagnetic interference.
出处
《电气应用》
北大核心
2008年第16期68-70,共3页
Electrotechnical Application
基金
江西省高等学校教学研究省级课题项目JXJG-07-15-7
